As residents of Joplin, Missouri, begin to sort through the aftermath of a tornado that killed at least 89 people on Sunday evening, many of them are posting information about the disaster using social media.
Video footage taken from a local Fastrip during the storm, photos of the damage, a post-tornado video taken from a helicopter and Twitter conversations between families and friends all help give a more complete picture of the terrifying and heartbreaking event.
We've compiled some of them below, and we also have four ways that you can help victims.